[Image-SIG] Help with PIL image.tostring

[Fredrik Lundh]

Robert wrote:

> I'm new to PIL and wanted to use Image.tostring for inline graphics 
> under mod-python. Seems like a good fit but I can't seem to come up with 
> the format of the required second parameter when you do
> 
> output = im.tostring ("jpeg", ???)

tostring() should only be used if you want to transfer the actual pixels 
to some other library (e.g. numpy), or if you're doing custom encoding 
for non-standard formats.

if you want to save an image in a standard format, use im.save() and a 
StringIO buffer instead:

     f = StringIO.StringIO()
     im.save(f, "JPEG")
     data = f.getvalue()

</F>